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Best basement waterproofing pros near Stanhope, NJ

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Top-Rated Basement waterproofing pros in Stanhope - Updated Nov 2026

Avatar for American A-1 Waterproofing
American A-1 Waterproofing
4.7(
148
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Stanhope, NJ and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"We recently had our basement waterproofed by the American A-1 Waterproofing Company, and I couldn't be happier with the job they did. From start to finish, the team at American A-1 Waterproofing was professional, knowledgeable, and dedicated to ensuring that my basement would be completely waterproof. First, the team came out to assess my basement and provide me with a detailed estimate of the work that needed to be done. They took the time to explain the process to me, answer my questions, and address any concerns I had. I felt like they really listened to my needs and customized their approach to fit my specific situation. Once the work began, the team was punctual, respectful, and efficient. They took great care to protect our home and belongings, and they kept us updated throughout the process. They worked quickly but thoroughly, and we were impressed by their attention to detail. The waterproofing work itself was top-notch. The team used high-quality materials and techniques to ensure that every nook and cranny of my basement was completely sealed and protected from water damage. They also installed 3 sump pump and created a French drain to further safeguard our home. A-1 did a great job waterproofing our flooded and leaking basement. They kept coming back as bigger rainstorms showed smaller leaks and waterproofed the inside and outside until stayed dry. Overall, I highly recommend American A-1 Waterproofing for anyone in need of basement waterproofing services. They are professional, knowledgeable, and dedicated to ensuring customer satisfaction. Thanks to their hard work, I now have a safe and dry basement that I can enjoy for years to come!"
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+14

Response time3 days
Response rate100%
3 neighbors recently requested a quote
Avatar for WEATHER-TITE WATERPROOFING INC.
WEATHER-TITE WATERPROOFING INC.
4.8(
100
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Stanhope, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1992

Free estimates

Warranties offered

"Professional, reliable, honest and hardworking. Bob was wonderful to work with! We urgently needed basement waterproofing and Bob was efficient and worked in a timely manner. I have already recommended Bob to a friend and will continue to do so!"
Response time12 hrs
24 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for American Eagle Waterproofing, LLC
American Eagle Waterproofing, LLC
4.8(
98
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Stanhope, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Free estimates

Warranties offered

"American Eagle Waterproofing came out quickly, scheduled the work quickly, completed the work timely and we just had a tremendous amount of rain from the hurricane Henri and not a wet spot in the basement."
waterproof
basement waterproofing
basement waterproofing
basement waterproofing
water under  floor

+6

Response time1 day
3 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Century Masonry & Waterproofing
Century Masonry & Waterproofing
4.9(
64
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Stanhope, NJ and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"Quality craftmanship, true to commitment, utmost professionalism, reasonable cost, and more... Century Masonry and Waterproofing are outstanding professionals, providing quality service and product at a reasonable cost. Besides their exemplary work ethic, they are kind, thoughtful, caring and respectful people, going above and beyond to help us. They treated my family with kindness and concern, helping out with things not required of them as my husband's recent illness prevented him from doing some of the work he committed to doing previously. I was in awe of the humanity they showed my family. In fact, my young granddaughter keeps asking if they could visit again! My family and I would HIGHLY recommend this company. Sincerely, Dawn"
The beginning
WaterGuard XL
Final Product
CleanSpace around support pillars
CleanSpace on the floor

+26

Response time1 day
6 neighbors recently requested a quote
Recommended by100%of homeowners
Basement Waterproofing Specialists
4.0(
597
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Stanhope, NJ and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"I have had my basement waterproofed twice and it still flooded. The companies couldn't stop the amount of water I was getting, Basement Waterproofing Specialists installed a commercial system in my basement and "I AM DRY!" thank you Basement Waterproofing Specialists."
Foundation Repair
 Before and After Stone Work
 Mirra Drain
 Mold Remediation
 Clean Work Areas

+67

Response time11 hrs
289 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for International Water Proofing & Construction, LLC
International Water Proofing & Construction, LLC
4.9(
19
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Stanhope, NJ and surrounding areas

Approved

In business since 2016

Free estimates

Small jobs welcome

We are a family company with 15 years of experience in the construction industry. We specialize in masonry work, concrete work and waterproofing. We will treat your home as we would our own. Give us a call today, we look forward to working with you!

Front Yard & Hardscape
After
Before
After
Before

+1

2 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Pipe Works Services Inc
Pipe Works Services Inc
4.4(
204
)
Basement Drainage Channels - Install

Serving Stanhope, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Emergency services offered

"When our basement's pipe and water filter unexpectedly burst, Delroy from Pipe Works Services came to our rescue. He arrived promptly, assessed our situation, and helped us choose a cost-effective yet highly functional solution. Delroy swiftly installed new piping, pressure valves, and a water filter with great attention to detail. We wholeheartedly recommend Pipe Works Services for all your plumbing needs, including their 24-hour emergency services—be sure to request Delroy!"
Additional Photos
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Additional Photos

+93

16 neighbors recently requested a quote
Recommended by78%of homeowners
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Basement Waterproofing FAQs, answered by experts

Ideal humidity conditions generally range from 30% to 50%, with 45% considered optimal humidity for most homes. If your humidity levels drop below that range, you can turn your dehumidifier off. Additionally, suppose the temperature where the dehumidifier is installed falls below 60 degrees Fahrenheit. In that case, it's best to turn it off and unplug it since cooler temperatures can cause the unit's coils to freeze.

Yes, you can finish a basement that leaks, as long as you address the leak first. Before finishing a basement, you’ll need to repair any cracks in the walls and waterproof the basement to prevent future leaks. It’s much harder to clean up a water leak from a finished basement than an unfinished one, so preemptively addressing any leaking areas prevents expensive repairs in the future.

Crawl space foundation problems can stem from a few different issues, but the most common are moisture and water problems and soil instability. Moisture and water issues are often a result of poor drainage, which can lead to water intrusion and soil expansion and contraction, leaving your foundation under added stress. A few things can cause soil instability, including poor drainage, karst landscapes and resulting sinkholes, and poorly compacted soil during construction.

The most challenging part of finishing a basement is addressing moisture control. Basement waterproofing is an essential task that requires a professional’s skills and knowledge. If you don’t properly waterproof your finished basement, it’ll be vulnerable to dampness, water damage, and mold growth. Ensuring proper insulation and ventilation to combat these issues while meeting building codes adds complexity to your remodeling project.

In most cases, a crawl space will not dry out on its own unless the moisture comes from an uncommon flood and isn’t expected to be a recurring issue. For most homeowners, moisture problems in the crawl space will only continue to get worse over time, so addressing the underlying problem with gutter systems or a foundation drainage system and setting up a preventative solution like a dehumidifier is necessary.

The Stanhope, NJ homeowners’ guide to basement waterproofing services

From average costs to expert advice, get all the answers you need to get your job done.